/Engine/Source/Runtime/Core/Public/Async/Fundamental/Scheduler.h
Tries to do some work until all the Tasks are completed the template parameter can be any Type that has a const conversion operator toFTask
template<typename TaskType> void BusyWait ( const [TArrayView](API\Runtime\Core\Containers\TArrayView)< const TaskType > & Tasks, bool ForceAllowBackgroundWork )